INFO: task syz-executor408:3667 blocked for more than 143 seconds.
Not tainted 5.17.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor408 state:D stack:28624 pid: 3667 ppid: 3646 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6304
schedule+0x12b/0x1f0 kernel/sched/core.c:6377
rwsem_down_write_slowpath+0xdb7/0x1480 kernel/locking/rwsem.c:1142
__down_write_common kernel/locking/rwsem.c:1259 [inline]
__down_write kernel/locking/rwsem.c:1268 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1515
inode_lock include/linux/fs.h:777 [inline]
chown_common+0x4fd/0x820 fs/open.c:677
do_fchownat+0x165/0x240 fs/open.c:711
__do_sys_chown fs/open.c:731 [inline]
__se_sys_chown fs/open.c:729 [inline]
__x64_sys_chown+0x7e/0x90 fs/open.c:729
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc93acb03b9
RSP: 002b:00007fc93ac402f8 EFLAGS: 00000246 ORIG_RAX: 000000000000005c
RAX: ffffffffffffffda RBX: 00007fc93ad394f0 RCX: 00007fc93acb03b9
RDX: 000000000000ee00 RSI: 000000000000ee00 RDI: 0000000020000040
RBP: 00007fc93ad394fc R08: 00007fc93ac40700 R09: 0000000000000000
R10: 00007fc93ac40700 R11: 0000000000000246 R12: 00007fc93ad06090
R13: 0030656c69662f2e R14: 64663d736e617274 R15: 00007fc93ad394f8
</TASK>
INFO: task syz-executor408:3671 blocked for more than 143 seconds.
Not tainted 5.17.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor408 state:D stack:28624 pid: 3671 ppid: 3647 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6304
schedule+0x12b/0x1f0 kernel/sched/core.c:6377
rwsem_down_write_slowpath+0xdb7/0x1480 kernel/locking/rwsem.c:1142
__down_write_common kernel/locking/rwsem.c:1259 [inline]
__down_write kernel/locking/rwsem.c:1268 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1515
inode_lock include/linux/fs.h:777 [inline]
chown_common+0x4fd/0x820 fs/open.c:677
do_fchownat+0x165/0x240 fs/open.c:711
__do_sys_chown fs/open.c:731 [inline]
__se_sys_chown fs/open.c:729 [inline]
__x64_sys_chown+0x7e/0x90 fs/open.c:729
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc93acb03b9
RSP: 002b:00007fc93ac402f8 EFLAGS: 00000246 ORIG_RAX: 000000000000005c
RAX: ffffffffffffffda RBX: 00007fc93ad394f0 RCX: 00007fc93acb03b9
RDX: 000000000000ee00 RSI: 000000000000ee00 RDI: 0000000020000040
RBP: 00007fc93ad394fc R08: 00007fc93ac40700 R09: 0000000000000000
R10: 00007fc93ac40700 R11: 0000000000000246 R12: 00007fc93ad06090
R13: 0030656c69662f2e R14: 64663d736e617274 R15: 00007fc93ad394f8
</TASK>
INFO: task syz-executor408:3668 blocked for more than 143 seconds.
Not tainted 5.17.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor408 state:D stack:28152 pid: 3668 ppid: 3648 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6304
schedule+0x12b/0x1f0 kernel/sched/core.c:6377
rwsem_down_write_slowpath+0xdb7/0x1480 kernel/locking/rwsem.c:1142
__down_write_common kernel/locking/rwsem.c:1259 [inline]
__down_write kernel/locking/rwsem.c:1268 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1515
inode_lock include/linux/fs.h:777 [inline]
chown_common+0x4fd/0x820 fs/open.c:677
do_fchownat+0x165/0x240 fs/open.c:711
__do_sys_chown fs/open.c:731 [inline]
__se_sys_chown fs/open.c:729 [inline]
__x64_sys_chown+0x7e/0x90 fs/open.c:729
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc93acb03b9
RSP: 002b:00007fc93ac402f8 EFLAGS: 00000246 ORIG_RAX: 000000000000005c
RAX: ffffffffffffffda RBX: 00007fc93ad394f0 RCX: 00007fc93acb03b9
RDX: 000000000000ee00 RSI: 000000000000ee00 RDI: 0000000020000040
RBP: 00007fc93ad394fc R08: 00007fc93ac40700 R09: 0000000000000000
R10: 00007fc93ac40700 R11: 0000000000000246 R12: 00007fc93ad06090
R13: 0030656c69662f2e R14: 64663d736e617274 R15: 00007fc93ad394f8
</TASK>
INFO: task syz-executor408:3670 blocked for more than 144 seconds.
Not tainted 5.17.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor408 state:D stack:28624 pid: 3670 ppid: 3651 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6304
schedule+0x12b/0x1f0 kernel/sched/core.c:6377
rwsem_down_write_slowpath+0xdb7/0x1480 kernel/locking/rwsem.c:1142
__down_write_common kernel/locking/rwsem.c:1259 [inline]
__down_write kernel/locking/rwsem.c:1268 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1515
inode_lock include/linux/fs.h:777 [inline]
chown_common+0x4fd/0x820 fs/open.c:677
do_fchownat+0x165/0x240 fs/open.c:711
__do_sys_chown fs/open.c:731 [inline]
__se_sys_chown fs/open.c:729 [inline]
__x64_sys_chown+0x7e/0x90 fs/open.c:729
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc93acb03b9
RSP: 002b:00007fc93ac402f8 EFLAGS: 00000246 ORIG_RAX: 000000000000005c
RAX: ffffffffffffffda RBX: 00007fc93ad394f0 RCX: 00007fc93acb03b9
RDX: 000000000000ee00 RSI: 000000000000ee00 RDI: 0000000020000040
RBP: 00007fc93ad394fc R08: 00007fc93ac40700 R09: 0000000000000000
R10: 00007fc93ac40700 R11: 0000000000000246 R12: 00007fc93ad06090
R13: 0030656c69662f2e R14: 64663d736e617274 R15: 00007fc93ad394f8
</TASK>
INFO: task syz-executor408:3672 blocked for more than 144 seconds.
Not tainted 5.17.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor408 state:D stack:28624 pid: 3672 ppid: 3649 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6304
schedule+0x12b/0x1f0 kernel/sched/core.c:6377
rwsem_down_write_slowpath+0xdb7/0x1480 kernel/locking/rwsem.c:1142
__down_write_common kernel/locking/rwsem.c:1259 [inline]
__down_write kernel/locking/rwsem.c:1268 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1515
inode_lock include/linux/fs.h:777 [inline]
chown_common+0x4fd/0x820 fs/open.c:677
do_fchownat+0x165/0x240 fs/open.c:711
__do_sys_chown fs/open.c:731 [inline]
__se_sys_chown fs/open.c:729 [inline]
__x64_sys_chown+0x7e/0x90 fs/open.c:729
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc93acb03b9
RSP: 002b:00007fc93ac402f8 EFLAGS: 00000246 ORIG_RAX: 000000000000005c
RAX: ffffffffffffffda RBX: 00007fc93ad394f0 RCX: 00007fc93acb03b9
RDX: 000000000000ee00 RSI: 000000000000ee00 RDI: 0000000020000040
RBP: 00007fc93ad394fc R08: 00007fc93ac40700 R09: 0000000000000000
R10: 00007fc93ac40700 R11: 0000000000000246 R12: 00007fc93ad06090
R13: 0030656c69662f2e R14: 64663d736e617274 R15: 00007fc93ad394f8
</TASK>
INFO: task syz-executor408:3669 blocked for more than 144 seconds.
Not tainted 5.17.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor408 state:D stack:28624 pid: 3669 ppid: 3650 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6304
schedule+0x12b/0x1f0 kernel/sched/core.c:6377
rwsem_down_write_slowpath+0xdb7/0x1480 kernel/locking/rwsem.c:1142
__down_write_common kernel/locking/rwsem.c:1259 [inline]
__down_write kernel/locking/rwsem.c:1268 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1515
inode_lock include/linux/fs.h:777 [inline]
chown_common+0x4fd/0x820 fs/open.c:677
do_fchownat+0x165/0x240 fs/open.c:711
__do_sys_chown fs/open.c:731 [inline]
__se_sys_chown fs/open.c:729 [inline]
__x64_sys_chown+0x7e/0x90 fs/open.c:729
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc93acb03b9
RSP: 002b:00007fc93ac402f8 EFLAGS: 00000246 ORIG_RAX: 000000000000005c
RAX: ffffffffffffffda RBX: 00007fc93ad394f0 RCX: 00007fc93acb03b9
RDX: 000000000000ee00 RSI: 000000000000ee00 RDI: 0000000020000040
RBP: 00007fc93ad394fc R08: 00007fc93ac40700 R09: 0000000000000000
R10: 00007fc93ac40700 R11: 0000000000000246 R12: 00007fc93ad06090
R13: 0030656c69662f2e R14: 64663d736e617274 R15: 00007fc93ad394f8
</TASK>
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8cb1d460 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/0:3/1133:
2 locks held by getty/3285:
#0: ffff888024476098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002b662e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6c5/0x1c60 drivers/tty/n_tty.c:2075
2 locks held by syz-executor408/3656:
#0: ffff888078d820f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:1034
#1: ffff8880725a8208 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: iterate_dir+0x124/0x640 fs/readdir.c:55
2 locks held by syz-executor408/3667:
#0: ffff888075a9e460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
#1: ffff8880725a8208 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: inode_lock include/linux/fs.h:777 [inline]
#1: ffff8880725a8208 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: chown_common+0x4fd/0x820 fs/open.c:677
2 locks held by syz-executor408/3660:
#0: ffff88801a17f9f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:1034
#1: ffff888072540208 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: iterate_dir+0x124/0x640 fs/readdir.c:55
2 locks held by syz-executor408/3671:
#0: ffff8880770e4460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
#1: ffff888072540208 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: inode_lock include/linux/fs.h:777 [inline]
#1: ffff888072540208 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: chown_common+0x4fd/0x820 fs/open.c:677
2 locks held by syz-executor408/3659:
#0: ffff888078d82d70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:1034
#1: ffff8880725a87d0 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: iterate_dir+0x124/0x640 fs/readdir.c:55
2 locks held by syz-executor408/3668:
#0: ffff888079768460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
#1: ffff8880725a87d0 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: inode_lock include/linux/fs.h:777 [inline]
#1: ffff8880725a87d0 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: chown_common+0x4fd/0x820 fs/open.c:677
2 locks held by syz-executor408/3661:
#0: ffff88801a18b9f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:1034
#1: ffff8880725407d0 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: iterate_dir+0x124/0x640 fs/readdir.c:55
2 locks held by syz-executor408/3670:
#0: ffff8880770ba460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
#1: ffff8880725407d0 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: inode_lock include/linux/fs.h:777 [inline]
#1: ffff8880725407d0 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: chown_common+0x4fd/0x820 fs/open.c:677
2 locks held by syz-executor408/3663:
#0: ffff888078d83c70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:1034
#1: ffff8880725a9360 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: iterate_dir+0x124/0x640 fs/readdir.c:55
2 locks held by syz-executor408/3672:
#0: ffff88807976e460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
#1: ffff8880725a9360 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: inode_lock include/linux/fs.h:777 [inline]
#1: ffff8880725a9360 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: chown_common+0x4fd/0x820 fs/open.c:677
2 locks held by syz-executor408/3662:
#0: ffff888078d82af0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:1034
#1: ffff8880725a8d98 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: iterate_dir+0x124/0x640 fs/readdir.c:55
2 locks held by syz-executor408/3669:
#0: ffff8880770a6460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
#1: ffff8880725a8d98 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: inode_lock include/linux/fs.h:777 [inline]
#1: ffff8880725a8d98 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: chown_common+0x4fd/0x820 fs/open.c:677
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.17.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc82/0xcd0 kernel/hung_task.c:369
kthread+0x2a3/0x2d0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
</TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3659 Comm: syz-executor408 Not tainted 5.17.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:check_preemption_disabled+0x82/0x1c0 lib/smp_processor_id.c:19
Code: 00 00 48 3b 44 24 08 0f 85 52 01 00 00 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 c7 04 24 00 00 00 00 9c 8f 04 24 <4c> 8b 24 24 bd 00 02 00 00 be 00 02 00 00 4c 21 e6 31 ff 0f 1f 44
RSP: 0018:ffffc9000280f0f8 EFLAGS: 00000046
RAX: 6857cdb758cb8a00 RBX: 0000000000000000 RCX: ffff8880759b0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff1ffbbdf
R10: fffffbfff1ffbbdf R11: 0000000000000000 R12: 0000000000000246
R13: 1ffff92000501e30 R14: ffffffff8a6f6440 R15: ffffffff8ad672a0
FS: 00007fc93ac61700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc93ac619e0 CR3: 000000007aabd000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
lockdep_hardirqs_off+0x71/0x100 kernel/locking/lockdep.c:4393
trace_hardirqs_off+0x14/0x70 kernel/trace/trace_preemptirq.c:76
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
_raw_spin_lock_irqsave+0xac/0x120 kernel/locking/spinlock.c:162
__debug_check_no_obj_freed lib/debugobjects.c:980 [inline]
debug_check_no_obj_freed+0xa9/0x650 lib/debugobjects.c:1023
free_pages_prepare mm/page_alloc.c:1358 [inline]
__free_pages_ok+0x3c0/0x1280 mm/page_alloc.c:1650
free_slab mm/slub.c:2043 [inline]
discard_slab mm/slub.c:2049 [inline]
__unfreeze_partials+0x1ab/0x200 mm/slub.c:2536
put_cpu_partial+0x116/0x180 mm/slub.c:2612
do_slab_free mm/slub.c:3497 [inline]
___cache_free+0x107/0x160 mm/slub.c:3516
qlist_free_all mm/kasan/quarantine.c:176 [inline]
kasan_quarantine_reduce+0x169/0x1f0 mm/kasan/quarantine.c:283
__kasan_slab_alloc+0x2f/0xe0 mm/kasan/common.c:446
kasan_slab_alloc include/linux/kasan.h:260 [inline]
slab_post_alloc_hook mm/slab.h:732 [inline]
slab_alloc_node mm/slub.c:3230 [inline]
slab_alloc mm/slub.c:3238 [inline]
kmem_cache_alloc+0x1c9/0x310 mm/slub.c:3243
p9_tag_alloc net/9p/client.c:266 [inline]
p9_client_prepare_req+0xb1/0x720 net/9p/client.c:697
p9_client_rpc+0x154/0x12a0 net/9p/client.c:734
p9_client_read_once+0x3e7/0x910 net/9p/client.c:1602
p9_client_read+0xa6/0x190 net/9p/client.c:1561
v9fs_dir_readdir+0x2fa/0x930 fs/9p/vfs_dir.c:113
iterate_dir+0x2aa/0x640
__do_sys_getdents64 fs/readdir.c:369 [inline]
__se_sys_getdents64+0x1ea/0x4e0 fs/readdir.c:354
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc93acb03b9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc93ac612f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9
RAX: ffffffffffffffda RBX: 00007fc93ad394e0 RCX: 00007fc93acb03b9
RDX: 0000000000000034 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 00007fc93ad394ec R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc93ad06090
R13: 0030656c69662f2e R14: 64663d736e617274 R15: 00007fc93ad394e8
</TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.297 msecs
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 48 3b 44 24 08 cmp 0x8(%rsp),%rax
7: 0f 85 52 01 00 00 jne 0x15f
d: 89 d8 mov %ebx,%eax
f: 48 83 c4 10 add $0x10,%rsp
13: 5b pop %rbx
14: 41 5c pop %r12
16: 41 5d pop %r13
18: 41 5e pop %r14
1a: 41 5f pop %r15
1c: 5d pop %rbp
1d: c3 retq
1e: 48 c7 04 24 00 00 00 movq $0x0,(%rsp)
25: 00
26: 9c pushfq
27: 8f 04 24 popq (%rsp)
* 2a: 4c 8b 24 24 mov (%rsp),%r12 <-- trapping instruction
2e: bd 00 02 00 00 mov $0x200,%ebp
33: be 00 02 00 00 mov $0x200,%esi
38: 4c 21 e6 and %r12,%rsi
3b: 31 ff xor %edi,%edi
3d: 0f .byte 0xf
3e: 1f (bad)
3f: 44 rex.R